Results 11 to 20 of about 34,241 (243)
The strong Fatou property of risk measures
In this paper, we explore several Fatou-type properties of risk measures. The paper continues to reveal that the strong Fatou property,whichwas introduced in [19], seems to be most suitable to ensure nice dual representations of risk measures.
Chen Shengzhong +2 more
doaj +1 more source
Density of Analytic Polynomials in Abstract Hardy Spaces [PDF]
Let $X$ be a separable Banach function space on the unit circle $\mathbb{T}$ and $H[X]$ be the abstract Hardy space built upon $X$. We show that the set of analytic polynomials is dense in $H[X]$ if the Hardy-Littlewood maximal operator is bounded on the
Karlovich, Alexei Yu.
core +2 more sources
Optimal Regularity Properties of the Generalized Sobolev Spaces
We prove optimal embeddings of the generalized Sobolev spaces , where is a rearrangement invariant function space, into the generalized Hölder-Zygmund space generated by a function space .
G. E. Karadzhov, Qaisar Mehmood
doaj +1 more source
Mixed norm spaces and rearrangement invariant estimates [PDF]
Our main goal in this work is to further improve the mixed norm estimates due to Fournier, and also Algervik and Kolyada, to more general rearrangement invariant (r.i.) spaces.
Clavero, Nadia, Soria, Javier
core +1 more source
New classes of rearrangement-invariant spaces appearing in extreme cases of weak interpolation
We study weak type interpolation for ultrasymmetric spaces L?,E i.e., having the norm ??(t)f*(t)?E˜, where ?(t) is any quasiconcave function and E˜ is arbitrary rearrangement-invariant space with respect to the measure dt/t. When spaces L?,E are not “too
Evgeniy Pustylnik, Teresa Signes
doaj +1 more source
Dynamical Rearrangement of Theta Parameter in Presence of Mixed Chern-Simons Term [PDF]
We study the five-dimensional SU(3)_c x U(1)_C gauge theory on the orbifold S^1/Z_2 with a mixed Chern-Simons term. We particularly pay attention to the realization of the dynamical rearrangement of the theta parameter for SU(3)_c.
Haba, Naoyuki +2 more
core +6 more sources
Banach algebra of the Fourier multipliers on weighted Banach function spaces
Let MX,w(ℝ) denote the algebra of the Fourier multipliers on a separable weighted Banach function space X(ℝ,w).We prove that if the Cauchy singular integral operator S is bounded on X(ℝ, w), thenMX,w(ℝ) is continuously embedded into L∞(ℝ).
Karlovich Alexei
doaj +1 more source
RUC systems in rearrangement invariant spaces [PDF]
An RUC (randomly unconditionally converging) system in a Banach space \(X\) is a biorthogonal system \((x_j,x_j^\ast)\) in \(X\times X^\ast\) such that for every \(x\) in the closed linear span of the \(x_n\), the series \(\sum\limits_{j=1}^\infty r_j(t)x_j^\ast(x)x_j\) converges for almost all \(t\in[0,1]\), where \(\{r_n\}_{n=1}^\infty\) denotes the ...
Dodds, P. G. +2 more
openaire +2 more sources
About interpolation of subspaces of rearrangement invariant spaces generated by Rademacher system
The Rademacher series in rearrangement invariant function spaces close to the space L∞ are considered. In terms of interpolation theory of operators, a correspondence between such spaces and spaces of coefficients generated by them is stated.
Sergey V. Astashkin
doaj +1 more source
Lebesgue's Differentiation Theorems in R.I. Quasi-Banach Spaces and Lorentz Spaces Γp,w
The paper is devoted to investigation of new Lebesgue's type differentiation theorems (LDT) in rearrangement invariant (r.i.) quasi-Banach spaces E and in particular on Lorentz spaces Γp,w={f:∫(f ...
Maciej Ciesielski, Anna Kamińska
doaj +1 more source

